/* ============================================================
   SHARED.CSS — Fun and Games Showdown Design System
   Liquid Glass aesthetic inspired by the Imposter game
   ============================================================ */

/* === Custom Properties === */
:root {
    /* Background */
    --bg-primary: #020617;
    --bg-radial-center: #0f172a;

    /* Glass */
    --glass-bg: rgba(30, 41, 59, 0.35);
    --glass-bg-heavy: rgba(30, 41, 59, 0.55);
    --glass-border: rgba(255, 255, 255, 0.10);
    --glass-border-hover: rgba(255, 255, 255, 0.18);
    --glass-blur: 16px;
    --glass-blur-heavy: 24px;

    /* Accent Colors */
    --accent-indigo: #818cf8;
    --accent-cyan: #22d3ee;
    --accent-emerald: #34d399;
    --accent-pink: #f9a8d4;
    --accent-gold: #facc15;
    --accent-purple: #a855f7;

    /* Semantic Colors */
    --color-success: #4ade80;
    --color-danger: #f87171;
    --color-warning: #fbbf24;
    --color-info: #38bdf8;

    /* Text */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Typography */
    --font-family: 'Plus Jakarta Sans', sans-serif;

    /* Radii */
    --radius-sm: 0.75rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-pill: 9999px;

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* === Reset & Base === */
[x-cloak] { display: none !important; }
.hidden { display: none !important; }

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    background-image: radial-gradient(ellipse at 50% 0%, var(--bg-radial-center) 0%, var(--bg-primary) 70%);
    color: var(--text-primary);
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
    min-height: 100vh;
    min-height: 100dvh;
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #334155; border-radius: var(--radius-pill); }

/* === Glass Panels === */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.06),
        0 8px 32px rgba(0, 0, 0, 0.3);
}

.glass-heavy {
    background: var(--glass-bg-heavy);
    backdrop-filter: blur(var(--glass-blur-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.08),
        0 16px 48px rgba(0, 0, 0, 0.4);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.06),
        0 4px 16px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition-spring),
                box-shadow var(--transition-base),
                border-color var(--transition-base);
}

.glass-card:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.1),
        0 12px 40px rgba(0, 0, 0, 0.35),
        0 0 30px rgba(129, 140, 248, 0.08);
}

.glass-card:active {
    transform: scale(0.97);
}

/* === Gradient Text === */
.gradient-text {
    background: linear-gradient(to bottom right, var(--accent-indigo), var(--accent-cyan), var(--accent-emerald));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-gold {
    background: linear-gradient(to bottom, #fde047 20%, #facc15 45%, #ec4899 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.5));
}

/* === Buttons === */
.btn {
    font-family: var(--font-family);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: none;
    border-radius: var(--radius-md);
    padding: 0.875rem 1.5rem;
    cursor: pointer;
    transition: transform var(--transition-fast),
                box-shadow var(--transition-base),
                background var(--transition-base);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn:active { transform: scale(0.96); }

.btn-primary {
    background: linear-gradient(135deg, #6366f1, #818cf8);
    color: white;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
}
.btn-primary:hover {
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.45);
    transform: translateY(-1px);
}
.btn-primary:active { transform: scale(0.96); }

.btn-secondary {
    background: rgba(51, 65, 85, 0.5);
    color: var(--text-secondary);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
}
.btn-secondary:hover {
    background: rgba(51, 65, 85, 0.7);
    color: var(--text-primary);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #f87171);
    color: white;
    box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, #22c55e, #4ade80);
    color: white;
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.3);
}

.btn-gold {
    background: linear-gradient(135deg, #fde047, #ca8a04);
    color: #1c1917;
    box-shadow: 0 4px 16px rgba(202, 138, 4, 0.35);
    border-radius: var(--radius-pill);
}
.btn-gold:hover {
    box-shadow: 0 8px 24px rgba(202, 138, 4, 0.5);
    transform: translateY(-2px);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-purple), #ec4899);
    color: white;
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.3);
}

/* === Form Inputs === */
.input {
    width: 100%;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-family);
    outline: none;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.input:focus {
    border-color: var(--accent-indigo);
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.15);
}
.input::placeholder {
    color: var(--text-muted);
}

/* === Animations === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInSimple {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes slideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}
@keyframes slideInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}
@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 20px rgba(129, 140, 248, 0.15); }
    50% { box-shadow: 0 0 40px rgba(129, 140, 248, 0.3); }
}

.animate-in { animation: fadeIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both; }
.animate-zoom { animation: zoomIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both; }
.animate-slide-right { animation: slideInRight 0.3s ease-out both; }
.animate-slide-up { animation: slideInUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both; }